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DEBU
2010
134views more  DEBU 2010»
13 years 2 months ago
Causality in Databases
Provenance is often used to validate data, by verifying its origin and explaining its derivation. When searching for "causes" of tuples in the query results or in genera...
Alexandra Meliou, Wolfgang Gatterbauer, Joseph Y. ...
CJ
2010
85views more  CJ 2010»
13 years 4 months ago
Multiparty Contracts: Agreeing and Implementing Interorganizational Processes
A contract specifies an interorganizational process together with a distribution of responsibilities for the activities among the parties involved. In this paper, we formally show ...
Wil M. P. van der Aalst, Niels Lohmann, Peter Mass...
ESORICS
2008
Springer
13 years 6 months ago
On the Security of Delegation in Access Control Systems
Delegation is a mechanism that allows a user A to act on another user B's behalf by making B's access rights available to A. It is well recognized as an important mechani...
Qihua Wang, Ninghui Li, Hong Chen